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Biology quiz #3: The brain and nervous system - Statistics
General Stats
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This quiz has been taken 1,767 times
1,718 since last reset
- The average score is 5 of 20
Answer Stats
| Hint | Answer | % Correct |
|---|---|---|
| The brain and spinal cord make up the... | Central nervous system (CNS) | 80%
|
| Which part of the brain controls the body's homeostatic mechanisms, such as core body temperature regulation? | Hypothalamus | 64%
|
| How many sodium ions do the sodium-potassium pumps pump out of the cell for every 2 potassium ions pumped into the cell? | 3 | 51%
|
| Which part of the brain is in control of the higher brain functions such as conscious thought? | Cerebrum | 44%
|
| What are the gaps between these cells called? | Nodes of Ranvier | 32%
|
| Which part of the brain controls heart rate and breathing? | Medulla oblongata | 26%
|
| What type of cell surrounds axons to form the myelin sheath? | Schwann cell | 25%
|
| What neurotransmitter is released by parasympathetic neurones? | Acetylcholine | 24%
|
| What is the potential difference across the axon membrane of a resting neurone called? | Resting potential | 21%
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| Which type of autonomic motor neurone is most active during times of stress? | Sympathetic | 21%
|
| Which type of autonomic motor neurone is most active during sleep and relaxation? | Parasympathetic | 18%
|
| What is the name of the period after an action potential has been stimulated during which another action potential cannot be stimulated? | Refractory period | 18%
|
| What is the name given to the way that an action potential appears to jump from one node of Ranvier to another? | Saltatory conduction | 15%
|
| What neurotransmitter is released by sympathetic neurones? | Noradrenaline | 13%
|
| What type of motor neurone carries impulses to the skeletal muscles (which are voluntary)? | Somatic | 12%
|
| What type of motor neurone in the PNS is mostly non-myelinated? | Autonomic | 10%
|
| From which part of the brain is ADH secreted? | Posterior pituitary gland | 6%
|
| What is the value of this potential difference (inside the cell compared to outside)? | -60mV | 5%
|
| What is the name of the pressure receptors in the skin? | Pacinian corpuscles | 5%
|
| What is the movement of ions along the neurone called? | Local current | 2%
|
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